I have already checked the ccu unit on another macine and it works fine.
We had a sled that used to do that all the time. ended up doing a tune up on it and it stopped dying. try changing the spark plugs and double check there are not vacuum leaks into the motor or intake manifolds.
also if the carbs are dirty then they may not be idling high enough to restart when it cuts out for a second to go into reverse....
Every time this happens with my Ski-Doo, it was Quickly remedied by replacing the Spark Plugs and the problem has gone away EVERY SINGLE TIME....
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